From a young age, Corina lived on her family's manor in Litus with her parents Callister and Elaena plus her older brother Lunan and, later on, her younger sister Danica. When Corina turned 13, she began her magic training under her father, Callister, as part of her wizardry studies but the bookwork bored her and she preferred to watch her brother duel with their mother, Elaena, when she had the time to spectate them. Corina began to practice with her brother Lunan using a set of wooden training blades and sneaking off with his actual rapier to practice at night. Once she'd become confident enough in magic to focus on an Arcane Tradition, Corina picked the uncommon course of Bladesinging and got her own sword at the age of 15. Corina's parents were initially surprised and reluctant to let their daughter take on such a dangerous path but Corina said she looked up to Lunan and her mother's dueling skills and their desire to make good use of their abilities. Callister and Elaena Flynt accepted their daughter's ambition and celebrated her progress, giving Corina the family spellcasting focus: a decorative piece of flint that now adorns the hilt of her blade.

As she became more proficient with her rapier, Corina developed a desire to learn more about new weapons and was fascinated by stories of the black powder rifles her parents told her about emerging onto the battlefield when they were young. By the time she heard legends of a new handheld firearm called a revolver, Corina had to get her hands on one. At the age of 16, Corina followed her brother on one of the adventures he undertook as the new Flynt family adventurer whilst her parents were distracted with their new daughter, Danica. Corina boarded Lunan’s boat to escape Litus so she wouldn’t be found by her parents as quickly and then made her way to a market in Rollyn when Lunan's ship docked. With her well-saved coins, Corina went searching for a revolver.
Though she found none and initially very little information on the fancy, new weapons, Corina met a blacksmith who promised to help her make one in exchange for work around his forge. Corina “had” to oblige when her brother headed to the Mythical Archipelago without knowing he was leaving his sister behind though she was happy to remain in Rollyn, taking on tasks for the blacksmith, Aerich Vaughn. When asked, Corina was vague about where she came from but, after working for Aerich for a few weeks, he allowed her to meet the family he worked for who hailed from Flairwood. The daughter of the wealthy merchant family seemed intrigued by Corina’s presence and they began to talk about weapons Flynt was making. The merchant’s daughter introduced herself as Skye Cerulean and the two discussed their passions, primarily related to blades but they had many topics come up during the many hours the merchant family was meeting with Aerich. When the Ceruleans departed, Corina said she enjoyed their talk and wished her new acquaintance well, getting a kind smile and a farewell wave in return. The blacksmith commented on Corina’s gaze into the distance which caused Corina to quickly get to work on a new task, brushing anything off and hoping she wasn’t visibly blushing. In the next few weeks, Corina sketched Skye's friendly wave in her spellbook quite a few times.

With Flynt's relationship with the Cerulean daughter becoming stronger, she began to go compete more not only for Lunan but to impress her girlfriend who loved weapons and using them as much as her. After some time dueling separately, the pair decided to make a competitive team for their escapades. They called themselves the Bluestone Bandits, taking the idea of Cerulean being a hue of blue and the Flynt family being named after the similarly spelled stone. After many competitions, they began to work very well as a team and Hawke Winchester also took interest in Flynt's shooting skills at related competitions, encouraging her to practice more and offering tips when she did.

Additionally, Skye pushed Flynt to develop her magic seeing as she enjoyed watching Flynt show off her abilities, and also got the Fire Genasi to experience the beach for the first time in her life, helping her with her fears of open waters.

Now adept in magic and blades as well as becoming proficient in revolvers, Corina set off on adventures with the help of Skye’s funding to try to gain more supplies, better coin returns, and extra information for Lunan’s health. The magical gunslinger adventured for a while on her own, returning to stay with Skye for a few weeks at a time, then going back out for Lunan. After a lengthy quest away from Skye and a brush with death, Corina realized she’d fallen deeply in love with her partner and proposed to Skye once back in Flairwood. Cerulean gave Corina a necklace for their engagement as it is Genasi tradition and she used it to store her spellcasting focus and a picture of her fiancé. A few months afterward, Corina gets news of a clue for Lunan’s health tied to the Surge and goes to investigate it, meeting the party soon after. By this point, Corina and Skye decided to take on the name Bluestone they used for their dueling team. The two lovers both began testing out their proposed surname of Bluestone though Corina also kept the Flynt family name since Lunan's adventuring brand relied on it and she was questing in his stead therefore she wished to honor her brother. Skye has also fondly nicknamed Corina "Sparks/Spark/Sparky" or "My Spark" as seen in all their letters and whenever they say farewell to each other with the nickname originating when they first met and Flynt was working in Aerich's forge. The party has probably seen Skye call Corina some form of her nickname though Flynt quiets down anything on the matter. 

Flynt has the tendency to fiddle with her hair when she’s nervous, likely since it glows more when she is flustered or gets excited and it’s dull when she’s tired. When she proposed, Flynt was a little nervous and definitely excited enough that her hair was able to glow so brightly it was a solid white, matching her future dress. If Flynt wears a veil during her wedding, it will surely act as a lampshade!